If you haven't added any nutes, then you should not need to flush. Most of the time when people flush, it is to take care of a soil issue (over nuteing).

though the answer to your question. the common ratio is 3:1 so if you have a 1 gallon pot, then you flush with 3 gallons of water. Unless you are using a Flushing agent, then you can use less.
Login Failed Reviewed by Login Failed on . Growing my first plant I'm happy to announce I've started my first plant ever :) . She's about 5 inches tall and I'm growing it in a closet with a proper light and a couple fans going. I currently have it's schedule on 18 hours light, 6 hours dark, which I'll turn to 50/50 when it's ready to bud. Anyway, I was wondering how much I should be watering my plant, and if there's any nutrients I should be applying at certain stages in growth? Rating: 5